Installing The Foam Dividers - Dometic FreshJet3 Series Installation Manual

Installation

8 .4 Installing the foam dividers

Roof thicknesses vary among RVs and the ADB
installation may require additional foam to fill any gaps in
thicker roofs.
This section describes how to determine if additional
foam dividers are required, the number required, and
the installation method.
e e
20 Measuring the roof thickness for foam divider installation
Ceiling opening
q
Rooftop model unit
w
basepan
1. Inspect the ADB and the mounting hardware placed
inside the RV at the beginning of "Positioning
the rooftop component" on page 15. See
"ADB components" on page 6 for the parts
configuration.
2. Measure the roof thickness, from a flat surface of the
installed rooftop component's basepan to the ceiling
opening inside the RV.
20
w w
q q
Roof thickness
e
Rooftop Air Conditioner (Air Distribution Box, Wall Thermostat Controls)
q q
w w
21 Stacking the foam dividers and placement location
Stacked foam
q
dividers
Roof thickness
w
Top foam -
e
0.4 in. (10 mm) (1)
Top foam ring -
r
0.4 in. (10 mm) (1)
3. Identify the different types and sizes of foam dividers.
4. Using the tables in "Roof thickness 6.0 to 7.5 in. (152
to 191 mm)" on page 23 and in "Roof thickness
1.25 to 5.5 in. (32 to 140 mm)" on page 22,
determine the number and combination of foam
dividers required based on the roof thickness.
e e
r r
t t
y y
u u
Foam divider -
t
0.4 in. (10 mm) (2)
Foam divider -
y
1.2 in. (30 mm) (3)
ADB adaptor (1)
u
EN